The design of a flange involves the selection of the gasket material, type, and dimensions, flange facing, bolting, hub proportions, flange width, and flange thickness. Flanges are standardized according publications from organizations like asme, mss, api and others. Flange to the old din standard are compatible to the new din en 10921. To order a reducing flange, state the smaller size first, then the outside diameter of the larger size. Mss sp44 is the only source for the nps 22 flange dimensions above. Each specification further delineates flanges into pressure classes. Flat face flanges may be provided at full thickness, c, or with raised face removed the latter is nonstandard. Texas flange flanges steel flanges industrial pipe flanges. Texas flange has served the petrochemical, process, and waterworks industries for over 3 decades. Class 150 flanges except lap joint will be furnished with 0. Classes 25, 125, and 250 has been added to your cart. Or, to simplify, just state the actual pipe sizes in order of larger to smaller. Asme procedures and policies, which precludes the issuance of interpretations by individuals.
Blind flange dimensions class 300, 400, 600, 900, 1500, 2500 up to 24 inch asme b16. Weld neck flange dimensions are covered in asme b16. J01715 gray iron pipe flanges and flanged fittings. C this dimension is commonly associated with true lap joints. Pdf flanges and bolt dimensions class 150 to 2500 asme. Industry standard is to make to the slip on length through the hub. Dimensions of sizes 12 through 3 12 are the same as for class 400 flanges. Flanges are standardized according publications from. This dimension is commonly associated with true lap joints.
Flange dimension 150 dimensions for class 150 flanges nom. Din flanges en flanges asme flanges jis flanges german national standards institute european standards america society of mechanical engineers japanese industrial standard din 2527. Weld neck flange dimensions class 150 to class 2500. Dimensions in inches of weld neck flanges and stud bolts asme. The resulting 1939 edition contained standards for welding neck flanges com pleted in march 1937, 1,500lb flanges in the 14in. We specialise in manufacturing a comprehensive range of 300 lb flange. We provide ansi, api, and awwa pipe flanges in carbon steel, stainless steel, alloys, and chrome steel.
Long weld neck flange dimensions class 150 to class 2500. Class 400 series a dimensions at nps 38 and larger also apply to class 400 series b flanges. Cast iron flanges stud reference chart the number, diameter and length of studs for cast iron flanges class 125 and 250. The mm values are rounded off to the nearest 0 or 5 in the asme standard. Jis flanges 2 kgcm2 blind slipon pipe inch mm pipe d do t c holes. Sizes nps 12 through 312 are same as class 600 flanges. Flange dimension charts for class 150, class 300, class 600, class 900, class 1500 and class 2500 free. To order a reducing flange, state the smaller size first, then the. Cast iron flanges asme ansi class 250 asme ansi b16.
Leaders in sealing integrity 3 general information 4 gaskets form ibc according to en 15141 form ibc 5 according to asme b 16. Due to the change of the designation of the sealing surface. Carbon steel pipe flanges dimensions and weights atlas steels. Ln flange with class 150, class 300, class 400, class 600, class 900, class 1500 and class 2500. Long weld neck flange dimensions are covered in asme b16. Reducing flanges are available in all types and pressures. The american society of mechanical engineers three park avenue, new york, ny 100165990. Thus, a comparison is done only for this sealing surfaces.
Weights are based on manufacturers data and are approximate. Flange dimensions shall be such that the stresses in the flange, calculated in accordance with 27, do not exceed the allowable stresses specified in 28. For the height measures h and b of all described dimensions of flanges on this website, with exception of the lap joint flange, it is important to understand and remember the following. Mss sp44 also covers nps 12 to nps 24 flanges which are equivalent to asme b16. According to din en and asme normatives table of contents company profile.
In pressure classes 150 and 300, the height of raised face is approximately 1. Click on images for flanges dimensions ibr flanges, ibr flanges in mumbai, ibr flange dimensions, ibr flanges manufacturers in pune, ibr flange table h, ibr flanges in ahmedabad, ibr flanges in chennai, ibr flanges suppliers, ibr approved flanges, ibr flange manufacturers in mumbai, ibr flange, ibr flange manufacturers in india, ibr flange. We provides 300 lb flange in several ansi asme standards like ansi b16. Flange dimensions are determined by the pipe size and the pressure class required for the application. Flanges and bolt dimensions class 150 to 2500 asmeansi b16.
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